Equilibrium Moisture and Drying Kinetics Modelling of Macroalgae Species <i>Ulva ohnoi</i> and <i>Oedogonium intermedium</i>

Algae-based products have applications in the food and pharmaceutical industries, bioremediation of waste streams and biofuel production. Drying has been recognised to constitute the largest energy cost in algae processing, yet there is limited data or modelling characterising the drying kinetics of...

Full description

Bibliographic Details
Main Authors: Craig Walker, Andrew Cole, Elsa Antunes, Madoc Sheehan
Format: Article
Language:English
Published: MDPI AG 2020-06-01
Series:Clean Technologies
Subjects:
Online Access:https://www.mdpi.com/2571-8797/2/2/15
_version_ 1797564407478222848
author Craig Walker
Andrew Cole
Elsa Antunes
Madoc Sheehan
author_facet Craig Walker
Andrew Cole
Elsa Antunes
Madoc Sheehan
author_sort Craig Walker
collection DOAJ
description Algae-based products have applications in the food and pharmaceutical industries, bioremediation of waste streams and biofuel production. Drying has been recognised to constitute the largest energy cost in algae processing, yet there is limited data or modelling characterising the drying kinetics of macroalgae. This research modelled the equilibrium moisture content of two macroalgae species, <i>Ulva ohnoi</i>, a saltwater alga and <i>Oedogonium intermedium</i>, a freshwater alga. The Guggenheim–Anderson–de Boer model was found to best represent experimental equilibrium moisture contents. Drying rate curves obtained under both convective and radiative conditions were fitted to an analytical solution of Fick’s second law, including the modelled equilibrium moisture values. Effective diffusivity values for the two species are presented.
first_indexed 2024-03-10T18:56:55Z
format Article
id doaj.art-04e8b19a5c4748a98f8aae332856a1be
institution Directory Open Access Journal
issn 2571-8797
language English
last_indexed 2024-03-10T18:56:55Z
publishDate 2020-06-01
publisher MDPI AG
record_format Article
series Clean Technologies
spelling doaj.art-04e8b19a5c4748a98f8aae332856a1be2023-11-20T04:38:14ZengMDPI AGClean Technologies2571-87972020-06-012222523910.3390/cleantechnol2020015Equilibrium Moisture and Drying Kinetics Modelling of Macroalgae Species <i>Ulva ohnoi</i> and <i>Oedogonium intermedium</i>Craig Walker0Andrew Cole1Elsa Antunes2Madoc Sheehan3College of Science and Engineering, James Cook University, Townsville 4811, AustraliaMACRO—The Centre for Macroalgal Resources and Biotechnology, College of Science and Engineering, James Cook University, Townsville 4811, AustraliaCollege of Science and Engineering, James Cook University, Townsville 4811, AustraliaCollege of Science and Engineering, James Cook University, Townsville 4811, AustraliaAlgae-based products have applications in the food and pharmaceutical industries, bioremediation of waste streams and biofuel production. Drying has been recognised to constitute the largest energy cost in algae processing, yet there is limited data or modelling characterising the drying kinetics of macroalgae. This research modelled the equilibrium moisture content of two macroalgae species, <i>Ulva ohnoi</i>, a saltwater alga and <i>Oedogonium intermedium</i>, a freshwater alga. The Guggenheim–Anderson–de Boer model was found to best represent experimental equilibrium moisture contents. Drying rate curves obtained under both convective and radiative conditions were fitted to an analytical solution of Fick’s second law, including the modelled equilibrium moisture values. Effective diffusivity values for the two species are presented.https://www.mdpi.com/2571-8797/2/2/15macroalgaedrying ratesequilibrium moisturediffusion modelling
spellingShingle Craig Walker
Andrew Cole
Elsa Antunes
Madoc Sheehan
Equilibrium Moisture and Drying Kinetics Modelling of Macroalgae Species <i>Ulva ohnoi</i> and <i>Oedogonium intermedium</i>
Clean Technologies
macroalgae
drying rates
equilibrium moisture
diffusion modelling
title Equilibrium Moisture and Drying Kinetics Modelling of Macroalgae Species <i>Ulva ohnoi</i> and <i>Oedogonium intermedium</i>
title_full Equilibrium Moisture and Drying Kinetics Modelling of Macroalgae Species <i>Ulva ohnoi</i> and <i>Oedogonium intermedium</i>
title_fullStr Equilibrium Moisture and Drying Kinetics Modelling of Macroalgae Species <i>Ulva ohnoi</i> and <i>Oedogonium intermedium</i>
title_full_unstemmed Equilibrium Moisture and Drying Kinetics Modelling of Macroalgae Species <i>Ulva ohnoi</i> and <i>Oedogonium intermedium</i>
title_short Equilibrium Moisture and Drying Kinetics Modelling of Macroalgae Species <i>Ulva ohnoi</i> and <i>Oedogonium intermedium</i>
title_sort equilibrium moisture and drying kinetics modelling of macroalgae species i ulva ohnoi i and i oedogonium intermedium i
topic macroalgae
drying rates
equilibrium moisture
diffusion modelling
url https://www.mdpi.com/2571-8797/2/2/15
work_keys_str_mv AT craigwalker equilibriummoistureanddryingkineticsmodellingofmacroalgaespeciesiulvaohnoiiandioedogoniumintermediumi
AT andrewcole equilibriummoistureanddryingkineticsmodellingofmacroalgaespeciesiulvaohnoiiandioedogoniumintermediumi
AT elsaantunes equilibriummoistureanddryingkineticsmodellingofmacroalgaespeciesiulvaohnoiiandioedogoniumintermediumi
AT madocsheehan equilibriummoistureanddryingkineticsmodellingofmacroalgaespeciesiulvaohnoiiandioedogoniumintermediumi